Timeline from Science News

From the September 7, 1929 issue

Click to view larger imageSCIENCE’S MASS ATTACK ON TUBERCULOSIS

Hundreds of pounds of deadly microbes, carefully tended and amply fed, are now being turned over to the chemists to be torn into their constituent chemicals. The most intimate, deadly secrets of the germs are at last being revealed by orderly chemical analysis and biological experiments.

When the secret of the pestilential activity of these parasites of the cell is found out, the doctors will be in a position to devise methods of counteracting it, for they will no longer have to work in the dark as they do today. And the results so far of science’s mass attack on tuberculosis, the first disease thus attacked, foretell the revolutionizing of present methods of treating and controlling disease.

PAVLOV REPORTS NEW THEORIES ON BRAIN

The part of the brain lying immediately below the two cerebral hemispheres is the most important part of the nervous system in maintaining the relation of the individual to the outer world, Prof. I.P. Pavlov, famous Russian physiologist, told the International Congress of Psychology, which has just closed its sessions at New Haven.

Prof. Pavlov, who is now 80 years old, is still eagerly carrying forward his quest for knowledge as to how the brain works. Describing the latest discoveries from his Leningrad laboratory, he stressed the close and strategic connection between the hemispheres of the brain which form the switchboard for the most complex conditioned, or learned, reflexes, and the subcortical part of the brain lying immediately beneath the hemispheres, which is the center for the most complex unlearned reflexes such as those dealing with food, sex, and self-defense.

"On the basis of the most recent experiments, I find it justifiable to separate the reflexes of these two centers from the rest of the nervous activity under the special name of the highest nervous activity," the physiologist stated.

PENNIES IN THE POOL

A bushel and a half of hairpins, nails, badges, and other miscellaneous articles too numerous to mention have been retrieved from Handkerchief Pool in Yellowstone National Park during a recent housecleaning.

According to Dr. E.T. Bodenburg, ranger naturalist, visitors at the Park must have the idea that the famous pool operates on the principle of a slot machine, for coins to the value of $1.98 were included in the haul.

The investigation of the spring’s "plumbing" was undertaken to facilitate the current movements for which the spring is noted. The currents are due to the cool water sinking on the sides of the pool while the warm water rises in the center.

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